+1 Ketan
Cheers, Jeff On Jul 25, 2019, 6:43 PM -0400, Ketan Talaulikar (ketant) <[email protected]>, wrote: > Hi Acee/All, > > During the LSR WG meeting on Monday, we talked about covering the BGP-LS > aspects of the following two IGP drafts in those drafts instead of requiring > a separate document: > > https://datatracker.ietf.org/doc/draft-ietf-isis-mpls-elc/ > https://datatracker.ietf.org/doc/draft-ietf-ospf-mpls-elc/ > > Originally, these IGP drafts introduced a new node capability that required a > new BGP-LS TLV and this was captured in the IDR WG document > https://datatracker.ietf.org/doc/draft-ietf-idr-bgp-ls-segment-routing-rld/ > > However after the discussion in the LSR WG over the last few months, the > approach has changed such that the IGP signalling is being done by > introduction of new flags and MSD-type. This makes the corresponding BGP-LS > updates quite trivial and as discussed in the LSR WG, I would recommend to > add some text (proposed below) to the two IGP documents. > > OSPF: > The OSPF extensions defined in this document can be advertised via BGP-LS > [RFC7752] using existing BGP-LS TLVs. The flags field of the OSPFv2 Extended > Prefix TLV and the OSPFv3 PrefixOptions where the ELC Flag introduced in this > document is advertised using the Prefix Attribute Flags TLV (TLV 1170) of the > BGP-LS IPv4/IPv6 Prefix NLRI Attribute > [https://tools.ietf.org/html/draft-ietf-idr-bgp-ls-segment-routing-ext-16#section-2.3.2]. > The new ERLD MSD-type introduced for OSPF by this document is advertised > using the Node MSD TLV (TLV 266) of BGP-LS Node NLRI Attribute > [https://tools.ietf.org/html/draft-ietf-idr-bgp-ls-segment-routing-msd-05#section-3]. > > ISIS: > The IS-IS extensions defined in this document can be advertised via BGP-LS > [RFC7752] using existing BGP-LS TLVs. The Prefix Attribute Flags sub-TLV > where the ELC Flag is introduced in this document is advertised using the > Prefix Attribute Flags TLV (TLV 1170) of the BGP-LS IPv4/IPv6 Prefix NLRI > Attribute > [https://tools.ietf.org/html/draft-ietf-idr-bgp-ls-segment-routing-ext-16#section-2.3.2]. > The new ERLD MSD-type introduced for IS-IS by this document is advertised > using the Node MSD TLV (TLV 266) of BGP-LS Node NLRI Attribute > [https://tools.ietf.org/html/draft-ietf-idr-bgp-ls-segment-routing-msd-05#section-3]. > > I am copying the IDR WG and authors of the BGP-LS ERLD draft as well for > their inputs/feedback. > > Thanks, > Ketan > > From: Lsr <[email protected]> On Behalf Of Acee Lindem (acee) > Sent: 25 July 2019 16:28 > To: [email protected] > Subject: [Lsr] IETF 105 LSR Working Group Meeting Minutes > > I think we had some very good discussions in our sessions this week. I’ve > uploaded the minutes for the both LSR sessions on Monday. Thanks much to > Yingzhen Qu for taking them. > > https://datatracker.ietf.org/meeting/105/materials/minutes-105-lsr-00 > > Thanks, > Acee > > _______________________________________________ > Lsr mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/lsr
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